Heading for zeroAce Hardware worked with its waste and recycling contractor to get one DC to the point where it ships nothing to a landfill. A second DC is close behind. And that's only a part of the hardware cooperative's sustainability efforts.By Peter Bradley

A complicated questionWhich is better: one centralized reverse logistics processing center or several regional ones? Experts say the answer depends on a lot more than just cost and efficiency.By Toby Gooley